JDK 9 RFR of JDK-8067099: Add deprecation lint warning to build of jdk repository

[joe darcy]

Hello,

The time approaches when the one remaining category of lint warning 
still present in the jdk repo, deprecation, will be eliminated. In 
anticipation of that happy day, please review this simple patch to 
enable the warning in the build:

diff -r f7c11da0b048 make/common/SetupJavaCompilers.gmk
--- a/make/common/SetupJavaCompilers.gmk    Thu Dec 04 15:21:09 2014 -0800
+++ b/make/common/SetupJavaCompilers.gmk    Tue Dec 09 17:30:32 2014 -0800
@@ -32,7 +32,7 @@

  # To build with all warnings enabled, do the following:
  # make JAVAC_WARNINGS="-Xlint:all -Xmaxwarns 10000"
-JAVAC_WARNINGS := -Xlint:all,-deprecation -Werror
+JAVAC_WARNINGS := -Xlint:all -Werror

  # The BOOT_JAVAC setup uses the boot jdk compiler to compile the tools
  # and the interim javac, to be run by the boot jdk.

As usual for this kind of change,  a jprt job will be used to verify the 
fix is valid on all platforms, etc.

Thanks,

-Joe